The Falsification Challenge
The philosopher Antony Flew adopted the scientific falsification principle in thinking about religious belief. That principle asserts that for any hypothesis to have credence, it must be disprovable (or falsifiable), before it can become accepted as a scientific hypothesis or theory. According to Flew, the same line of reasoning should apply to religious beliefs. For any given statement of faith, one should not be expected to accept its truth unless that statement has a level of credence that is afforded by the ability to verify that it is consistent with observed reality. Flew used a parable to illustrate his point: